Siemens Sinumerik 840D sl Diagnostic Manual page 334

Overview of Alarms
NCK alarms
Definitions: Interpolatory compensation with tables. The input or output axes assignment in the given table is not
allowed. $AN_CEC_INPUT_AXIS and $AN_CEC_OUTPUT_AXIS != 0 apply to system variables.
This table is automatically switched off.
Reaction: Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. Check and correct the axis assignment
in the compensation table. If the error cannot be found, the alarm can be suppressed by switching off
the table ($SN_CEC_TABLE_ENABLE) or switching off compensation in the axis
($MA_CEC_ENABLE).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20123 Axis %1: different output assignment of multiplied tables
Parameters: %1 = Axis name, spindle number
Definitions: Interpolatory compensation with tables. The two tables whose outputs are to be multiplied together
have different output axes assigned to them. The compensation in this axis is automatically switched
off.
Reaction: Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. Check and correct the characteristic data
in the compensation table ($AN_CEC_OUTPUT_AXIS and $AN_CEC_MULT_BY_TABLE).
If the error cannot be found, the alarm can be suppressed by switching off the compensation in the
axis ($MA_CEC_ENABLE) or the tables, ($SN_CEC_TABLE_ENABLE).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20124 Axis %1: sum of compensation values too large
Parameters: %1 = Axis name, spindle number
Definitions: The sum of the compensation values from all tables assigned to the axis had exceeded the limit value
MD32720 $MA_CEC_MAX_SUM and had to be limited. Contour errors could have occurred as a
result.
Reaction: Interface signals are set.
Alarm display.
Remedy: Check characteristic data of the compensation tables assigned to the axis.
Check characteristic curves in the tables ($AN_CEC).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20125 Axis %1: change of compensation value is too rapid
Parameters: %1 = Axis name, spindle number
Definitions: The compensation value has changed more rapidly than has been allowed for in MD32730
$MA_CEC_MAX_VELO. It had to be limited temporarily. The missing section is repeated later but
contour errors might have occurred.
Reaction: Interface signals are set.
Alarm display.
Remedy: Check characteristic data of the compensation tables assigned to the axis.
Check characteristic curves in the tables ($AN_CEC). Possibly one of the input axes has moved more
rapidly than provided for.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
20130 [Channel %1: ] Contour tunnel monitoring
Parameters: %1 = Channel number
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009